These aren't anything like what I'm trying to describe, other than also being round. The new ones will a single solid cylinder of fins for a good three inches with a fan on top. None of the crowning stuff.

That's my whole point, is that they're not the same things. If you've read a review of a round heatsink like the one I linked to, I daresay that has nothing to do with the the heatsinks I'm talking about.

All the stuff in my list is sitting in my dining room. I was putting it together when I realized that my Spark 7 didn't have the damn clips. I returned it, because Fry's doesn't have the damn clips, and ordered the 947 from heatsinkfactory.com. So shipping isn't an issue.

I wound up going with heatsinkfactory.com because they prompted me for the screws and power connector. I just want to buy everything and plug it in.

Success! I am posting this while running at 3.58 GHz at the stock voltage and a 1:1 memory speed ratio with 2.5-3-3-7 DRAM timing. I still have some tweaking to do with memory timing and voltage to see if I can get more of out it, but as far as I am concerned this is an unqualified success. Any more frequency or less latency is just bonus.

The only tripping point so far has been my front panel audio header doesn't match the damn audio socket labels, so I'm having to figure that out by trial and error.